SL-4 R/B (36506)

COSPAR: 2010-011B | Alt Name: Soyuz-FG No. 028 Blok-I
DECAYED

Image
SL-4 R/B Satellite Image
Additional Sources
Launch Details

Launch Date

April 2, 2010

Launch Pad

LC1

Launch Vehicle

Soyuz-FG

Orbital Elements

NORAD ID

36506

International Designator

2010-011B

Decay Date

4/5/2010

Basic Satellite Info

Name

SL-4 R/B

Alternative Name

Soyuz-FG No. 028 Blok-I

Type

Rocket Body

Status

Space Junk

Owner

KVR

Country

Russia

Constellation

N/A

Related Satellites

Major Events

N/A

Summary
A rocket body, also commonly referred to as an upper stage or spent rocket stage, is the structural shell left behind after a rocket has delivered its payload to orbit. These large and often heavy pieces of space hardware can remain in orbit for years, posing significant collision hazards as part of the growing space debris problem. If left uncontrolled, rocket bodies have the potential to reenter Earth's atmosphere unpredictably, which can lead to falling debris in populated areas. Additionally, they risk colliding with operational satellites or the International Space Station, creating more debris and putting human life at risk.
Physical Characteristics

Length

6.7

Diameter

2.7

Span

6.7

Dry Mass

2350

Launch Mass

2350

Shape

Cyl

Radar Cross Section

6.526

Visual Magnitude

Unknown

Color

Unknown

Material Composition

Unknown

Technical Details

Payload

11S510

Purpose

Unknown

Mission

Unknown

Manufacturer

PROGT

Life Expectancy

Unknown

Bus

Blok-I

Configuration

Unknown

Motor

Unknown

Equipment

Unknown

Power System

Unknown

ADCS

Unknown

Transmitter Frequency

Unknown

Satellite Articles

View All Posts »

Learn more about satellites and other related topics.

Space Situational Awareness (SSA)

Space Situational Awareness (SSA)

How our ability to track and predict objects in orbit has become the foundation of space safety in an increasingly crowded cosmic neighborhood

Blue Origin Targets New Glenn Return Before Year-End After Pad Explosion | KeepTrack Space Brief

Blue Origin Targets New Glenn Return Before Year-End After Pad Explosion | KeepTrack Space Brief

Blue Origin aiming for 2nd New Glenn launch by end of 2026 after LC-36 pad explosion at Cape Canaveral. Repair timeline still unclear; mission critical for national security payloads.

Van Allen Probe A Reenters After 14 Years; NASA Designates Starliner Type A Mishap | KeepTrack Space Brief

Van Allen Probe A Reenters After 14 Years; NASA Designates Starliner Type A Mishap | KeepTrack Space Brief

NASA's 590 kg Van Allen Probe A reentered March 10 after 14 years studying Earth's radiation belts. Meanwhile, Boeing Starliner classified as Type A mishap after leaving astronauts stranded on ISS.

X Report 10 Dec 2024

X Report 10 Dec 2024

SpaceX gears up for a busy launch schedule with multiple missions, while its Starship program progresses with a successful Super Heavy test. Meanwhile, NASA's Artemis 2 faces delays, highlighting SpaceX's ongoing momentum in the space sector.

1 Million AI Data Centers in Orbit Threaten Astronomy | KeepTrack X Report

1 Million AI Data Centers in Orbit Threaten Astronomy | KeepTrack X Report

SpaceX's proposed 1-million-satellite AI data center constellation alarms astronomers as Falcon 9 logs its 25th Starlink launch of 2026.

X Report 12 May 2025

X Report 12 May 2025

SpaceX prepares for its 100th Falcon 9 launch from Kennedy Space Center while facing a scrubbed attempt of the latest Starlink deployment.

Space Brief 4 Nov 2025

Space Brief 4 Nov 2025

Today's brief covers China's new GEO Yaogan satellite launch, India's record-mass commsat, military tech updates, autonomous systems for maritime security, and insights from satellite imagery of Hurricane Melissa's impact in Jamaica.

X Report 11 Nov 2024

X Report 11 Nov 2024

SpaceX to launch Koreasat-6A on a record-tying Falcon 9 flight, and 24 Starlink satellites later today.